Crashes on 486
squelch41 opened this issue · comments
On windows 98 dos, loading on 486 fails
(Presume due to needing i586 instructions so not really fixable?)
Shutting down Allegro
Exiting due to signal SIGABRT
Invalid Opcode at eip-0053aae0
eax-00000000 ebx-002d4d70 ecx=00000000 edx=00000000 esi 00000000 edi=00000000
ebp-00246200 esp-00244cac progran=C:\DOSTODONDOJS.EXE
cs: sel-00a4 base-00400000 limit=007affff
ds: sel=00ac base-00400000 limit=007affff es: sel=00ac base-00400000 limit=007affff
fs: sel-00ac base-00400000 limit=007affff
gs: sel-00bc base-00000000 limit=0010ffff ss: sel=00ac base-00400000 limit=007affff
App stack: [002deb20..0025eb201 Exceptn stack: [0025eacc..0025cb8c]
Call frame traceback EIPs:
0x0053aae0
I don't own a 486, but I can try to reproduce on DOSBox...
Also: how much RAM has the 486?
Also: how much RAM has the 486?
64mb
can you give me some more specs on the machine?
CPU type/speed? graphics adapter? soundcard?
DOjS is compiled for 386, in theory it should work...
yes of course-
V4P895P3 VLB Motherboard and AMD 486 133MHz CPU
64mb RAM, CF 4Gb HDD,
Realtek 8019 ethernet + XT-IDE bios ROM (isa), ES1869 soundcard (isa) , VLB multi-io card Cirrus Logic GD5428 1mb VGA
Win98 dos
realtek packet driver and mTCP tcp/ip stack
XTIDE rom in network card (to overcome bios limitations on hdd detection)
happy to give any more details needed/run test builds- let me know
For now I can confirm that DOjS crashes on DOSBox w/ 486DX5-133 when I try TLS/SSL connections. Loading PNGs and JPGs works fine...
@squelch41 I pushed a new version that runs fine on DOSBox-X with an emulated 486.
The problem was mbedTLS which uses Pentium (or later) assembly instructions for AES acceleration. The code does noch check if the CPU actually supports these. Therefore I turned that feature off...
yey! That works on my real 486!